Method and installation for the continuous fabrication of...

Details Method and installation for the continuous fabrication of... Method and installation for the continuous fabrication of...

B - Operations, Transporting

29

C

18/657

B29C 44/22 (2006.01)

Patent

CA 1101624

ABSTRACT A method for the continuous fabrication of blankets or sheets of expanded phenolic resin displaying a hard skin on each of their sides, according to which a mixture, comprising in particular a resole resin, a blowing agent and a hardening catalyst is placed on an essentially flat surface of a moving element, is brought to foam and is conformed between two par- allel surfaces entrained in the same direction, the lower sur- face being situated in the same plane as the surface of the moving component, characterized in that, in a first stage, the mixture is brought into free air towards the conformation surfaces by being submitted to a heating so as to have it expand and then the expanded mass is conformed by exerting a pressure on its free side, at the moment of entry between the conformation surfaces, and the hardening of the resin is completed while maintaining the pressure and the heating.

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